<template>
  <div class="upload-container">
    <el-button icon='el-icon-upload' size="mini" :style="{background:color,borderColor:color}" @click=" dialogVisible=true" type="primary">上传图片
    </el-button>
    <el-dialog :visible.sync="dialogVisible">
      <el-upload class="editor-slide-upload" action="/api/img/upload" :multiple="true" :file-list="fileList" :show-file-list="true" :on-success="successFile" list-type="picture-card" :on-remove="handleRemove" :on-preview="handlePictureCardPreview" :on-progress="handelProgress"
        :before-upload="beforeUpload">
        <el-button size="small" type="primary">点击上传</el-button>
      </el-upload>
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="handleSubmit">确 定</el-button>
    </el-dialog>
    <el-dialog :visible.sync="dialogPicVisible">
      <img width="100%" :src="dialogImageUrl" alt="">
    </el-dialog>
  </div>
</template>

<script>
  // import { getToken } from 'api/qiniu'
  import {
    uploadImg
  } from '@/api/common/upload'
  export default {
    name: 'editorSlideUpload',
    props: {
      color: {
        type: String,
        default: '#1890ff'
      }
    },
    data() {
      return {
        dialogVisible: false,
        dialogPicVisible: false,
        dialogImageUrl: null,
        listObj: {},
        fileList: [],
        imgData: {
          accept: 'image/gif, image/png, image/jpeg',
        }
      }
    },
    methods: {
      checkAllSuccess() {
        return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess)
      },
      handleSubmit() {
        const arr = Object.keys(this.listObj).map(v => this.listObj[v])
        if (!this.checkAllSuccess()) {
          this.$message('请等待所有图片上传成功 或 出现了网络问题，请刷新页面重新上传！')
          return
        }
        this.$emit('successCBK', arr)
        this.listObj = {}
        this.fileList = []
        this.dialogVisible = false
      },
      handelProgress(e, file) {
        this.progress = Math.floor(e.percent)
      },
      // uploadSectionFile(content) {
      //   let file = content.file
      //   const uid = file.uid
      //   const type = file.type;
      //   if (this.imgData.accept.indexOf(type) == -1) {
      //     this.MessageBox("error", "图片格式不正确")
      //     return
      //   }
      //   const size = file.size
      //   if (size > 5242880) {
      //     this.MessageBox("error", "图片不能大于５M")
      //     return
      //   }
      //   let data = new FormData()
      //   data.append("file", file)
      //   uploadImg(data).then((response) => {
      //     if (response.code === 0) {
      //       const objKeyArr = Object.keys(this.listObj)
      //       for (let i = 0, len = objKeyArr.length; i < len; i++) {
      //         if (this.listObj[objKeyArr[i]].uid === uid) {
      //           this.listObj[objKeyArr[i]].url = response.data
      //           this.listObj[objKeyArr[i]].hasSuccess = true
      //           return
      //         }
      //       }
      //     }
      //   })
      // },
      handlePictureCardPreview(file) {
        this.dialogImageUrl = file.url;
        this.dialogPicVisible = true;
      },
      handleRemove(file) {
        const uid = file.uid
        const objKeyArr = Object.keys(this.listObj)
        for (let i = 0, len = objKeyArr.length; i < len; i++) {
          if (this.listObj[objKeyArr[i]].uid === uid) {
            delete this.listObj[objKeyArr[i]]
            return
          }
        }
      },
      beforeUpload(file) {
        // const isLt2M = file.size / 1024 / 1024 < 5;
        const _self = this
        // if (!isLt2M) {
        //   _self.$message.error('图片不能超过５M');
        //   return isLt2M
        // }
        const _URL = window.URL || window.webkitURL
        const fileName = file.uid
        this.listObj[fileName] = {}
        return new Promise((resolve, reject) => {
          const img = new Image()
          img.src = _URL.createObjectURL(file)
          img.onload = function() {
            _self.listObj[fileName] = {
              hasSuccess: false,
              uid: file.uid,
              width: this.width,
              height: this.height
            }
          }
          resolve(true)
        })
      },
      successFile(response, file, fileList) {
        const uid = file.uid
        if (response.code === 0) {
          const objKeyArr = Object.keys(this.listObj)
          for (let i = 0, len = objKeyArr.length; i < len; i++) {
            if (this.listObj[objKeyArr[i]].uid === uid) {
              this.listObj[objKeyArr[i]].url = response.data
              this.listObj[objKeyArr[i]].hasSuccess = true
              return
            }
          }
        }else{
           this.$message({
                type: 'error',
                message: response.msg
            })
        }
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  .editor-slide-upload {
    margin-bottom: 20px;
    /deep/ .el-upload--picture-card {
      width: 100%;
    }
  }
</style>
